ASIC firmware downloads / ASIC specifications
ASIC.TOOLS / FIRMWARE
Bitmain Antminer S5 firmware
Official firmware versions matched to the exact ASIC model or manufacturer family. Local copies include SHA-256 checksums.
Firmware is hardware-specific. Match the exact model and control-board revision, back up settings, use stable power, test one miner first, and never interrupt an upgrade. A wrong image can make the controller unbootable.
Official manufacturer firmware
3 versionsExact model Official source: BITMAIN Product Manual & Firmware ↗
| Version | Published / updated | Compatibility | Size | SHA-256 | Download |
|---|---|---|---|---|---|
| 20150715SD-S5-20150715-fan_ctrl.tar.gz | 2025-05-29 | ANTMINER S5 | 18.2 MB | df9ed42b944b1d4e4547ca7643b56c3e5215b0f5aa1be719b5efbde8ba5b10b8MD5: 1579e8b4035fc1fd85a1b2f6b5a8efb4 | Download local verified copy ↓Official source ↗ |
| Release notes: Update: 1.User defined fan speed; 2. Interval of detection time for high temperature protection is 2S after the first alarm; 3. Process optimized of miner's status; MD5: 1579E8B4035FC1FD85A1B2F6B5A8EFB4 | |||||
| 20150415SD-S5-20150415.tar.gz | 2025-05-29 | ANTMINER S5 | 18.2 MB | 9697dfb92feb32b6d9d73741d272d2aa77afe5a79bb1ee6719fc0ba088a9af3bMD5: d0525c428e205c2471ab554cf95d77d3 | Download local verified copy ↓Official source ↗ |
| Release notes: add anti-DDOS function. improve minerlink function. MD5: D0525C428E205C2471AB554CF95D77D3 | |||||
| 20150107SD-S5-20150107.tar.gz | 2025-05-29 | ANTMINER S5 | 18.2 MB | —MD5: 0c30d32d68e64f528da06af19b23d859 | Official listing; local copy unavailableOfficial source ↗ |
| Release notes: firmware for S5. MD5: 0C30D32D68E64F528DA06AF19B23D859 | |||||
Verify the downloaded file with SHA-256 before uploading it to a miner.
Sources checked 14 September 2026